package card2;

import java.util.ArrayList;
import java.util.List;
import java.util.Random;

public class CardDemo {
    private String[] suits = {"♥", "♠", "♦", "♣"};


    public List<Card> buyCard() {
        List<Card> cardList = new ArrayList<>();
        for(int i=0;i<4;i++) {
            for(int j=1;j<=13;j++) {
                Card card = new Card(suits[i],j);
                cardList.add(card);
            }
        }
        return cardList;
    }

    public void shuttle(List<Card> cardList) {
        for(int i=cardList.size()-1;i>0;i--) {
            Random random =new Random();
            int index = random.nextInt(i);
            swap(cardList,i,index);
        }
    }
    private void swap(List<Card> cardList,int a,int b) {
        Card tmp = cardList.get(a);
        cardList.set(a,cardList.get(b));
        cardList.set(b,tmp);
    }

    public void getCard(List<Card>cardList) {
        List<Card> hand1 = new ArrayList<>();
        List<Card> hand2 = new ArrayList<>();
        List<Card> hand3 = new ArrayList<>();

        List<List<Card>> hands= new ArrayList<>();
        hands.add(hand1);
        hands.add(hand2);
        hands.add(hand3);

        for(int i=0;i<5;i++) {
            for(int j=0;j<3;j++) {
                Card card = cardList.remove(0);
                hands.get(j).add(card);
            }
        }

        System.out.println("第1个人揭牌如下");
        System.out.println(hand1);
        System.out.println("第2个人揭牌如下");
        System.out.println(hand2);
        System.out.println("第3个人揭牌如下");
        System.out.println(hand3);

        System.out.println("剩下的牌如下：");
        System.out.println(cardList);

    }
}
